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Limeng really researched the coronavirus for only a few months. Before, he didn't study the coronavirus at all, or even the virus. How can he be said to be the "world's top virologist"? She is just doing post-doctoral research. If she is a "top virologist", how does her boss Pan Liewen count? And what about virologists who became professors and academicians? Is it "Ding Ding Top"? Therefore, Yan Limeng is not even a "top virologist" at all, not even a virologist. He is a very ordinary biomedical researcher with a relatively short history of studying viruses and coronaviruses.